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(integer_{zero,one,all_ones,pow2}p, real_{zero,one,two}p): Return 0 if

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TREE_CONSTANT_OVERFLOW.

From-SVN: r13107
This commit is contained in:
Richard Kenner 1996-11-07 07:45:58 -05:00
parent 9898deac71
commit 1ac876be7e
1 changed files with 8 additions and 2 deletions

10
gcc/tree.c

@ -1502,6 +1502,7 @@ integer_zerop (expr)
STRIP_NOPS (expr);
return ((TREE_CODE (expr) == INTEGER_CST
&& ! TREE_CONSTANT_OVERFLOW (expr)
&& TREE_INT_CST_LOW (expr) == 0
&& TREE_INT_CST_HIGH (expr) == 0)
|| (TREE_CODE (expr) == COMPLEX_CST
@ -1519,6 +1520,7 @@ integer_onep (expr)
STRIP_NOPS (expr);
return ((TREE_CODE (expr) == INTEGER_CST
&& ! TREE_CONSTANT_OVERFLOW (expr)
&& TREE_INT_CST_LOW (expr) == 1
&& TREE_INT_CST_HIGH (expr) == 0)
|| (TREE_CODE (expr) == COMPLEX_CST
@ -1543,7 +1545,8 @@ integer_all_onesp (expr)
&& integer_zerop (TREE_IMAGPART (expr)))
return 1;
else if (TREE_CODE (expr) != INTEGER_CST)
else if (TREE_CODE (expr) != INTEGER_CST
|| TREE_CONSTANT_OVERFLOW (expr))
return 0;
uns = TREE_UNSIGNED (TREE_TYPE (expr));
@ -1592,7 +1595,7 @@ integer_pow2p (expr)
&& integer_zerop (TREE_IMAGPART (expr)))
return 1;
if (TREE_CODE (expr) != INTEGER_CST)
if (TREE_CODE (expr) != INTEGER_CST || TREE_CONSTANT_OVERFLOW (expr))
return 0;
high = TREE_INT_CST_HIGH (expr);
@ -1614,6 +1617,7 @@ real_zerop (expr)
STRIP_NOPS (expr);
return ((TREE_CODE (expr) == REAL_CST
&& ! TREE_CONSTANT_OVERFLOW (expr)
&& REAL_VALUES_EQUAL (TREE_REAL_CST (expr), dconst0))
|| (TREE_CODE (expr) == COMPLEX_CST
&& real_zerop (TREE_REALPART (expr))
@ -1629,6 +1633,7 @@ real_onep (expr)
STRIP_NOPS (expr);
return ((TREE_CODE (expr) == REAL_CST
&& ! TREE_CONSTANT_OVERFLOW (expr)
&& REAL_VALUES_EQUAL (TREE_REAL_CST (expr), dconst1))
|| (TREE_CODE (expr) == COMPLEX_CST
&& real_onep (TREE_REALPART (expr))
@ -1644,6 +1649,7 @@ real_twop (expr)
STRIP_NOPS (expr);
return ((TREE_CODE (expr) == REAL_CST
&& ! TREE_CONSTANT_OVERFLOW (expr)
&& REAL_VALUES_EQUAL (TREE_REAL_CST (expr), dconst2))
|| (TREE_CODE (expr) == COMPLEX_CST
&& real_twop (TREE_REALPART (expr))